Home / 20,140.08-30,207.78-5,350.14

Finding the Fourth Proportional to 20,140.08, 30,207.78 and 5,350.14

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Solution

The fourth proportional to 20,140.08, 30,207.78 and 5,350.14 is: 8,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,140.08 : 30,207.78 = 5,350.14 : x
  2. Step 2: Convert to fraction form
    20,140.08/30,207.78 = 5,350.14/x
  3. Step 3: Cross multiply
    20,140.08x = 30,207.78 × 5,350.14
  4. Step 4: Simplify right side
    20,140.08x = 161,615,852.09
  5. Step 5: Solve for x
    x = 161,615,852.09/20,140.08
  6. Step 6: Final answer
    x = 8,024.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.